Re: Multiple serial ports for Pocket PC?

From: Carl Nilsson <
>
Date: Sat, 17 Apr 2004 18:52:14 +1000

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Bryan:
thanks for prompt and helpful reply.  I like the first option best.  Can 
you point this techo novice to manufacturers of (a) ethernet cards for CF 
or SD and (b) serial to ethernet adapters, without undue time spent on your 
part?
I have been following this board for some time.  I gathered from the 
archive an article by Doug Sutherland from 2001 entitled "Re Mobile 
Sensorium" that looked promising, but (a) I have been unable to contact him 
re further info and (b) maybe technology has moved on a bit in the last 
three years.   I want to feed a PDA in an ultralight aircraft with data 
from various instruments that generally output in serial RS232 - ranging 
from 9600 baud to 38,400 baud.  If I can put an ethernet line into the PDA 
directly on a card that would be good.   Are serial to ethernet adapters 
essentially devices that can draw their power from the data lines?  I 
presume also that they don't need any host operating system.
Carl

At 01:15 PM 4/17/04, you wrote:

>get four serial to ethernet adapters
>put an ethernet card on your pda
>read the four streams independently in one program and send them to your
>main program in one stream.. if they need to be one stream.
>
>otherwise, you need to have a standalone device that takes in 4 9600baud
>streams and outputs a single 38400 baud stream. could be done with a micro
>controller or three.. one each for mixing two streams..
>
>get an ipaq with a dual pcmcia expansion sleeve.
>get two socket communications pcmcia dual serial cards for four ports
>total.
>
>There are three options.
>-Bryan Hurley
>
>On Sat, 17 Apr 2004, Carl Nilsson wrote:
>
> > Can someone please advise me on what products are available to gather data
> > from at least four serial lines at different baud rates and set them up
> > into one serial stream that goes to a PDA running Pocket PC?
> >
> > Carl Nilsson
> > 137 Gordons Hill Road
> > Lindisfarne
> > Tasmania 7015
> > Australia
> >
> >
> > --
> > Subscription/unsubscription/info requests: send e-mail with subject of
> > "subscribe", "unsubscribe", or "info" to 
> > Wear-Hard Mailing List Archive (searchable): http://wearables.blu.org
> > Please, *PLEASE* don't subscribe through a forward/expander/false domain
> >
>
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Carl Nilsson
137 Gordons Hill Road
Lindisfarne
Tasmania 7015
Australia 
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<font size=3>Bryan:<br>
thanks for prompt and helpful reply.  I like the first option
best.  Can you point this techo novice to manufacturers of (a)
ethernet cards for CF or SD and (b) serial to ethernet adapters, without
undue time spent on your part?<br>
I have been following this board for some time.  I gathered from the
archive an article by Doug Sutherland from 2001 entitled "Re Mobile
Sensorium" that looked promising, but (a) I have been unable to
contact him re further info and (b) maybe technology has moved on a bit
in the last three years.   I want to feed a PDA in an
ultralight aircraft with data from various instruments that generally
output in serial RS232 - ranging from 9600 baud to 38,400 baud.  If
I can put an ethernet line into the PDA directly on a card that would be
good.   Are serial to ethernet adapters essentially devices
that can draw their power from the data lines?  I presume also that
they don't need any host operating system.<br>
Carl<br><br>
At 01:15 PM 4/17/04, you wrote:<br><br>
<br>
<blockquote type=cite class=cite cite="">get four serial to ethernet
adapters<br>
put an ethernet card on your pda<br>
read the four streams independently in one program and send them to
your<br>
main program in one stream.. if they need to be one stream.<br><br>
otherwise, you need to have a standalone device that takes in 4
9600baud<br>
streams and outputs a single 38400 baud stream. could be done with a
micro<br>
controller or three.. one each for mixing two streams..<br><br>
get an ipaq with a dual pcmcia expansion sleeve.<br>
get two socket communications pcmcia dual serial cards for four
ports<br>
total.<br><br>
There are three options.<br>
-Bryan Hurley<br><br>
On Sat, 17 Apr 2004, Carl Nilsson wrote:<br><br>
> Can someone please advise me on what products are available to
gather data<br>
> from at least four serial lines at different baud rates and set them
up<br>
> into one serial stream that goes to a PDA running Pocket PC?<br>
><br>
> Carl Nilsson<br>
> 137 Gordons Hill Road<br>
> Lindisfarne<br>
> Tasmania 7015<br>
> Australia<br>
><br>
><br>
> --<br>
> Subscription/unsubscription/info requests: send e-mail with subject
of<br>
> "subscribe", "unsubscribe", or "info"
to <br>
> Wear-Hard Mailing List Archive (searchable):
<a href="http://wearables.blu.org/" eudora="autourl">http://wearables.blu.org</a><br>
> Please, *PLEASE* don't subscribe through a forward/expander/false
domain<br>
><br><br>
--<br>
Subscription/unsubscription/info requests: send e-mail with subject
of<br>
"subscribe", "unsubscribe", or "info" to
<br>
Wear-Hard Mailing List Archive (searchable):
<a href="http://wearables.blu.org/" eudora="autourl">http://wearables.blu.org</a><br>
Please, *PLEASE* don't subscribe through a forward/expander/false
domain</blockquote>
<x-sigsep><p></x-sigsep>
Carl Nilsson<br>
137 Gordons Hill Road<br>
Lindisfarne<br>
Tasmania 7015<br>
Australia</font></body>
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